The table shown below details the observed amount of electricity consumed by the average American over the course of one year, as measured in kilowatt-hours. Month Usage (kWh) Jan-Feb 2,239 Mar-Apr 2,197 May-Jun 2,113 Jul-Aug 2,156 Sep-Oct 2,269 Nov-Dec 2,270 Kevin is trying to display this information in the form of a graph. He would like the graph to look like the one below. What scale should Kevin use on the y-axis to display the information on the table like the graph?